Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
0500110moderately pollutedexcellent91excellent
040085lightly pollutedexcellent71excellent
030069lightly pollutedexcellent71excellent
020081lightly pollutedexcellent81excellent
010078lightly pollutedexcellent61excellent
000078lightly pollutedexcellent81excellent
230070lightly pollutedexcellent81excellent
220060goodexcellent71excellent
210084lightly pollutedexcellent101excellent
200085lightly pollutedexcellent101excellent
190071lightly pollutedexcellent81excellent
180068lightly pollutedexcellent81excellent
170051goodexcellent61excellent
160044goodexcellent51excellent
150042goodexcellent41excellent
140040goodexcellent51excellent
130052goodexcellent51excellent
120066lightly pollutedexcellent91excellent
110076lightly pollutedexcellent91excellent
100069lightly pollutedexcellent91excellent
090067lightly pollutedexcellent81excellent
080063lightly pollutedexcellent81excellent
070062lightly pollutedexcellent71excellent
060062lightly pollutedexcellent71excellent